One characteristic is the presence of strong moral lessons. These books often teach values like love, forgiveness, and self - sacrifice which are central to Christian teachings. For example, characters may face difficult situations where they have to choose between revenge and forgiveness.
Most of these works also tend to have a sense of hope and redemption. No matter how dark the situation gets, there is always a glimmer of hope that things will get better through faith. They often end with a positive message, whether it's a character finding salvation or a community being restored through the power of God's love.